Einstein on Arthur Nørve
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Recent content in Einstein on Arthur NørveHugo -- gohugo.ioenPlease use and share :)Fri, 07 May 2021 19:35:22 +0200Gravitation and Cosmology
https://arthur.noerve.com/books/gravitation-and-cosmology-weinberg/
Fri, 07 May 2021 19:35:22 +0200https://arthur.noerve.com/books/gravitation-and-cosmology-weinberg/Quantum Mechanics
https://arthur.noerve.com/notes/quantum-mechanics/
Fri, 11 Sep 2020 23:29:37 +0200https://arthur.noerve.com/notes/quantum-mechanics/Quantum mechanics is the the foundation of all the quantum sciences, most notably QFT.
Dirac-von Neumann axioms The space of states is a complex (countably infinite) Hilbert space $\mathbb{H}$. The following axioms apply to the qm system:
The observables are defined as self-adjoint operators on $\mathbb{H}$ The state $\psi$ is a unit vector of $\mathbb{H}$ The expectation value of an observable $A$ is $⟨\psi,A\psi⟩$ From these principles it is possible to derive the Schrödinger equation.